what Os's can i use on my nexus 7 once it is rooted? can i use a windows OS? what i want to be able to do is use a OS that will allow me to use the latest versions of adobe flash so i can use websites that require adobe flash. i have flash installed now with firefox but the older version of adobe flash wont work for some sites and the ones it does work with it doesnt work completely correctly.

ive tried 2 different car chargers with the oem cable with no luck. they were both  dual chargers that stated they delivered 2.1 amps if one port was used the other 3 amps using one port. are they lying and i need a single port charger with 2 amps or better?

has anybody tried this? can i simply use a usb toethernet adaptor plugged into my usb otg cable or do i need one of the more expensive ones with an ic chip and what type should i get? they run anywhere from 10 bucks to 50.